force phpunit 9 for now

Author: kbond

src/Test/MakerTestEnvironment.php

@@ -260,7 +260,7 @@ private function buildFlexSkeleton(): void
         }
 
         // fetch a few packages needed for testing
-        MakerTestProcess::create('composer require phpunit browser-kit symfony/css-selector --prefer-dist --no-progress --no-suggest', $this->flexPath)
+        MakerTestProcess::create('composer require phpunit/phpunit:"^9.6" phpunit-bridge browser-kit symfony/css-selector --prefer-dist --no-progress --no-suggest', $this->flexPath)
                         ->run();
 
         if ('\\' !== \DIRECTORY_SEPARATOR) {

src/Test/MakerTestRunner.php

@@ -207,7 +207,7 @@ public function updateSchema(): void
     public function runTests(): void
     {
         $internalTestProcess = MakerTestProcess::create(
-            \sprintf('php %s', $this->getPath('bin/phpunit')),
+            \sprintf('php %s', $this->getPath('vendor/bin/phpunit')),
             $this->environment->getPath())
             ->run(true)
         ;